Review on 💡 TH0037 Electrical Hydraulic Knockout with Enhanced Warranty by Solomon Inks

I have no idea what the negative reviews are about. This seems to me to be an operator error. I've been punching 4" holes since I bought this set. And it works great. zero complaints. For $275, can't complain. All I had to do was drill a cross pattern into each cup. I simply used an old Greenlee KO set to make pencil marks and tapped it lightly with a Dremmel diamond point. Again, if you use it properly, you shouldn't have any problems with it. But they sent me a replacement without asking any questions. That's why customer service gets 5 stars. Thank you TEMCo.